I think it should be left as it is...I like it that it's up to me to figure out if I've used the same letter twice! The only way I'll make that mistake less and less is to have to find it myself.

Here's a feature I'd love to see though...I'm still seeing most of these quotes for the first time, and I wish I could compare my first time to everyone else's first time, in addition to the current stats. At my fastest, I'm about 3 times bansai or lurker's record time, and I'm actually pretty proud of that